Liquid level detection and automatic water replenishing type cooling tower

Abstract

The utility model belongs to the technical field of cooling towers, and discloses a liquid level detection and automatic water replenishing type cooling tower, which comprises a cooling tower body, a water replenishing tank, an operation panel and an electric control module, the electric control module comprises a processor, a display operator and a buzzer which are fixed on the operation panel, a liquid level monitoring element is arranged in the water replenishing tank, and the liquid level monitoring element is arranged in the water replenishing tank. The liquid level monitoring element and the display operator are both electrically connected with the processor, and the buzzer and the liquid level monitoring element are both electrically connected with the display operator; according to the utility model, visual display of liquid level data in the water replenishing tank, liquid level alarm and automatic replenishing are realized, and the response speed of water replenishing work and the double improvement of cost reduction and efficiency improvement are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling towers, in particular to a liquid level detection and automatic water replenishment type cooling tower. Background Art

[0002] In the industrial production process, a large amount of waste heat is generated. If this heat is not dissipated in time, it will damage the related equipment, increase maintenance costs, and affect the production progress. The closed cooling tower is an industrial heat dissipation equipment that uses two circulation cooling methods that are completely isolated inside and outside, and uses the latent heat of vaporization to cool the internal circulating water.

[0003] In the Chinese invention patent with patent application number 200710024355.4, a closed cooling tower is proposed. The problems in this patent are as follows: the water level in the soft water tank is measured by a water level meter arranged on the soft water tank, and the water level data is not intuitive enough. The operator can only judge whether it is necessary to add circulating soft water to the soft water tank based on work experience; and in this patent, the addition of soft water in the soft water tank needs to be manually controlled, and intelligent control cannot be achieved with the water level meter. Utility Model Content

[0004] The main technical problem to be solved by the utility model is to provide a liquid level detection and automatic water replenishment type cooling tower, which realizes the intuitive display of liquid level data in the water replenishment tank, liquid level alarm and automatic replenishment, and achieves the dual improvement of the response speed of water replenishment work and cost reduction and efficiency improvement.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A liquid level detection and automatic water replenishment cooling tower comprises a cooling tower body, a water replenishment tank and an operation panel, and also comprises an electric control module for automatically monitoring and replenishing the liquid level in the water replenishment tank. The electric control module comprises a processor fixed on the operation panel, a display operator and a buzzer. A liquid level monitoring element for real-time monitoring of the liquid level in the water replenishment tank is installed inside the water replenishment tank. The liquid level monitoring element and the display operator are both electrically connected to the processor, and the buzzer and the liquid level monitoring element are both electrically connected to the display operator.

[0007] The following is a further optimization of the above technical solution by the utility model:

[0008] The display operator is fixed on the operation panel, and is provided with a liquid level column for displaying the liquid level data in the water replenishment tank. A plurality of operation buttons are provided on one side of the liquid level column, and a plurality of warning lights are provided on the other side of the liquid level column.

[0009] Further optimization: a water supply pipe is installed at the upper end of one side wall of the water supply tank, a solenoid valve is installed on the water supply pipe, and the solenoid valve is electrically connected to the processor.

[0010] Further optimization: the interior of the cooling tower body is connected to the interior of the water supply tank through a soft water outlet pipe, and the bottom of the water supply tank is connected to a circulating pump through a water outlet pipe.

[0011] The utility model adopts the above technical solution and has the following beneficial effects: the technical solution of the utility model is ingenious in conception and reasonable in structure, and the monitored liquid level data is intuitively displayed by setting a display operator, and the operator can read accurate liquid level data according to the scale of the liquid level column.

[0012] When the upper and lower limits of the liquid level are reached, the buzzer will emit a buzzing sound to warn, and can automatically replenish water and automatically stop replenishing water, realizing automatic replenishment of soft water and liquid level alarm. There is no need for operators to perform manual operations at the cooling tower, thereby reducing labor costs and achieving the goal of reducing costs and increasing efficiency.

[0013] Compared with the manual operation mode, the intelligent monitoring, alarm and water replenishment mode adopted by the utility model has a faster response speed for the soft water replenishment work.

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the utility model;

[0017] Figure 2 for Figure 1 A magnified view of the structure at center.

[0018] In the figure: 1. Cooling tower body; 2. Water supply tank; 21. Water supply pipe; 22. Solenoid valve; 3. Operation panel; 4. Electronic control module; 41. Processor; 42. Display operator; 421. Liquid level column; 422. Operation button; 423. Warning light; 43. Buzzer; 44. Liquid level monitoring element; 5. Soft water outlet pipe; 6. Water outlet pipe; 7. Circulation pump. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1 and Figure 2 As shown together, a liquid level detection and automatic water replenishment cooling tower includes a cooling tower body 1, a water replenishment tank 2 and an operation panel 3, and also includes an electronic control module 4 for automatically monitoring and replenishing the liquid level in the water replenishment tank 2. The electronic control module 4 includes a processor 41 fixed on the operation panel 3, a display operator 42 and a buzzer 43. A liquid level monitoring element 44 for real-time monitoring of the liquid level in the water replenishment tank 2 is installed inside the water replenishment tank 2. The liquid level monitoring element 44 and the display operator 42 are both electrically connected to the processor 41, and the buzzer 43 and the liquid level monitoring element 44 are both electrically connected to the display operator 42.

[0021] In this embodiment, the arrangement of the electric control module 4 realizes automatic monitoring of the liquid level data in the water supply tank 2, intelligent liquid level alarm and automatic replenishment of soft water.

[0022] Compared with the manual checking of liquid level and manual operation of water replenishment in traditional cooling towers, the utility model effectively improves the response speed of water replenishment work and saves manual operation. The saved labor can be arranged to other workstations for work, achieving the purpose of reducing costs and increasing efficiency.

[0023] In this embodiment, the processor 41 may be a Siemens S7-1200 PLC controller.

[0024] In this embodiment, the display operator 42 may adopt the YJAH series intelligent liquid level optical column measuring and controlling device produced by Shanghai Yijiang Industrial Co., Ltd., and the liquid level monitoring element 44 may adopt the YJWT series liquid level transmitter produced by Shanghai Yijiang Industrial Co., Ltd.

[0025] like Figure 2 As shown, the display operator 42 is fixed on the operation panel 3, and a liquid level column 421 for displaying the liquid level data in the water replenishment tank 2 is provided on the display operator 42, a plurality of operation buttons 422 are provided on one side of the liquid level column 421, and a plurality of warning lights 423 are provided on the other side of the liquid level column 421.

[0026] In this embodiment, a scale line is provided at the liquid level column 421 , and the operator can intuitively understand the liquid level data displayed by the liquid level column 421 .

[0027] In this embodiment, the display operator 42 and the liquid level monitoring element 44 are used in combination. The liquid level monitoring element 44 monitors the liquid level of the soft water in the water replenishment tank 2. The monitored data is directly transmitted to the display operator 42 and visually displayed through the liquid level column 421.

[0028] In this embodiment, the plurality of warning lights 423 represent an upper limit warning, an upper limit warning, a lower limit warning, and a lower limit warning in sequence.

[0029] In this embodiment, when the liquid level value displayed on the liquid level column 421 reaches the preset maximum liquid level value or the preset minimum liquid level value, that is, the water replenishment in the water replenishment tank 2 is not successfully stopped or the water replenishment is not successful, the buzzer 43 sounds an alarm and the operator can come to check without the operator having to wait in front of the equipment.

[0030] Moreover, a water supply pipe 21 is installed at the upper end of one side wall of the water supply tank 2 , and a solenoid valve 22 is installed on the water supply pipe 21 , and the solenoid valve 22 is electrically connected to the processor 41 .

[0031] In addition, the interior of the cooling tower body 1 is connected to the interior of the water supply tank 2 through a soft water outlet pipe 5 , and the bottom of the water supply tank 2 is connected to a circulation pump 7 through a water outlet pipe 6 .

[0032] In this embodiment, the internal structure and working principle of the cooling tower body 1 and the control principle of the cooling tower by the operation panel 3 constitute the prior art and will not be described in detail here.

[0033] The method of using the utility model is as follows:

[0034] In the first step, the soft water in the cooling tower body 1 enters the water supply tank 2 through the soft water outlet pipe 5, and the soft water in the water supply tank 2 is pumped out by the circulation pump 7 and enters the medium frequency electric furnace for heat dissipation. At the same time, the high-temperature soft water in the medium frequency electric furnace also re-enters the cooling tower body 1 for cooling circulation.

[0035] In the second step, the processor 41 controls the display operator 42, the buzzer 43 and the liquid level monitoring element 44 to start. The liquid level monitoring element 44 monitors the liquid level height inside the water replenishment tank 2 in real time. The liquid level data monitored by the liquid level monitoring element 44 is transmitted to the display operator 42 and displayed on the liquid level column 421.

[0036] In the third step, when the liquid level value displayed on the liquid level column 421 drops to a preset low liquid level range, the warning light 423 representing the lower limit warning lights up and water is automatically replenished;

[0037] If the liquid level value displayed on the liquid level column 421 continues to drop to the preset minimum liquid level value, the warning light 423 representing the lower limit warning will light up and the buzzer 43 will sound an alarm, prompting the operator to check the equipment to avoid insufficient soft water in the circulation affecting the heat dissipation of the medium frequency electric furnace.

[0038] Step 4: When the liquid level value displayed on the liquid level column 421 rises to within the normal liquid level range, it proves that the water replenishment is successful, and the warning light 423 representing the lower limit warning goes out, until the liquid level value displayed on the liquid level column 421 rises to within the preset high liquid level range, the warning light 423 representing the upper limit warning lights up and stops automatic water replenishment;

[0039] If the liquid level value displayed on the liquid level column 421 continues to rise to the preset maximum liquid level value, the warning light 423 representing the upper limit warning will light up and the buzzer 43 will sound an alarm, prompting the operator to check the equipment to avoid excessive soft water in the circulation affecting the normal operation of the medium frequency electric furnace.

[0040] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liquid level detection and automatic water replenishment cooling tower, comprising a cooling tower body (1), a water replenishment tank (2) and an operation panel (3), characterized in that: It also includes an electric control module (4) for automatically monitoring and replenishing the liquid level in the water replenishment tank (2). The electric control module (4) includes a processor (41) fixed on the operation panel (3), a display operator (42) and a buzzer (43). A liquid level monitoring element (44) for real-time monitoring of the liquid level in the water replenishment tank (2) is installed inside the water replenishment tank (2). The liquid level monitoring element (44) and the display operator (42) are both electrically connected to the processor (41), and the buzzer (43) and the liquid level monitoring element (44) are both electrically connected to the display operator (42).

2. A liquid level detection and automatic water replenishment cooling tower according to claim 1, characterized in that: The display operator (42) is fixed on the operation panel (3), and is provided with a liquid level column (421) for displaying liquid level data in the water replenishment tank (2), a plurality of operation buttons (422) are provided on one side of the liquid level column (421), and a plurality of warning lights (423) are provided on the other side of the liquid level column (421).

3. A liquid level detection and automatic water replenishment type cooling tower according to claim 2, characterized in that: A water supply pipe (21) is installed at the upper end of a side wall of the water supply tank (2), and a solenoid valve (22) is installed on the water supply pipe (21), and the solenoid valve (22) is electrically connected to the processor (41).

4. A liquid level detection and automatic water replenishment cooling tower according to claim 3, characterized in that: The interior of the cooling tower body (1) is connected to the interior of the water supply tank (2) via a soft water outlet pipe (5), and the bottom of the water supply tank (2) is connected to a circulation pump (7) via a water outlet pipe (6).

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